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I Pr.8.1884-.

I P RICHARDSON EEEL PLATE FOR RUBB R SHOES. No. 296.455.

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UNITED STATES PATENT OEFicE.

FREDERICK RICHARDSON, OF PROVIDENCE, RHODE ISLAND.

HEEL-PLATE FOR RUBBER SHOES.

SPECIFICATION forming part of Letters Patent No. 296,455, dated April 8,1884. Application filed May 15. 1882. (No model.)

To all whom it may concern.-

Be it known that I, FREDERICK RICHARD- soN, a citizen of the UnitedStates, residing at Providence, in the county of Providence and State ofRhode Island, have invented a new and useful Improvement inWearing-Plates for Rubber Heels; and I hereby declare that the followingis afull, clear, and exact description of the same, reference being hadto the accompanying drawings, forming part of this specification.

My invention relates to an improvement in the construction of that classofwearing-plates which are designed to be embedded in the heel,- andwhich are provided with wearing-surfaces extending to the tread of theheel.

The object of my invention is to render the action of the wearing-platemore efiicient.

My invention consists in the provision of a wearing-plate provided onits under side with elongated wearingsurfaces extending downward to thetread of the shoe, as hereinafter described and claimed.

Figure 1 is a perspective View of my improved heel, showing the metallicwearingsurface. Fig. 2 is a view of one form of metallic frame providedwith ribs and a flange, forming the tread of the heel. Fig. Sis asectional view of the heel, showing the metal frame embedded in therubber of the heel. Fig. 4 is a sectional view of the mold in which theheel is pressed, showing the wearing-plate embedded in the rubber.

. In the drawings, A represents the rubber heel; B, themetal plateasawhole; O, themold; D, the plunger.

The metal plate 13 consists of a skeleton plate, 6, formed of bars withopenings between them, which plate is embedded in the green rubber, andis provided with the rear flange, g, forming the rear edge of the heeland protecting the same, and the ribs ff, which, extending to the treadof the heel, protect the rubber against wear. The heel is made byplacing the metal plate B into the mold O,forcing the green rubberaround the plate, and forming the heel. The heel is now vulcanized,either before or after it has been' secured to the boot, and the wholebecomes one homogeneous mass, the metal protecting the rubber, and therubber firmly holding the metal in place.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. As an improved article of manufacture, the skeletonplate B, formed with the rim 9, and the bars 6, provided with the ribsf, substantially as and for the'purposes set forth.

2. The combination, with a rubber boot or shoe, of the skeleton plate B,embedded in the heel thereof, and formed with the rim g, and the bars 6,provided with the ribs f, substantially as and for the purposes setforth.

FREDERICK RICHARDSON.

Witnesses:

HENRY J. MILLER, M. E. EMERsoN.

